1//  (C) Copyright Gennadiy Rozental 2001.
2//  Distributed under the Boost Software License, Version 1.0.
3//  (See accompanying file LICENSE_1_0.txt or copy at
4//  http://www.boost.org/LICENSE_1_0.txt)
5
6//  See http://www.boost.org/libs/test for the library home page.
7//
8//  File        : $RCSfile$
9//
10//  Version     : $Revision$
11//
12//  Description : simple implementation for Unit Test Framework parameter
13//  handling routines. May be rewritten in future to use some kind of
14//  command-line arguments parsing facility and environment variable handling
15//  facility
16// ***************************************************************************
17
18#ifndef BOOST_TEST_UNIT_TEST_PARAMETERS_IPP_012205GER
19#define BOOST_TEST_UNIT_TEST_PARAMETERS_IPP_012205GER
20
21// Boost.Test
22#include <boost/test/unit_test_parameters.hpp>
23
24#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
25#include <boost/test/utils/basic_cstring/compare.hpp>
26#include <boost/test/utils/basic_cstring/io.hpp>
27#include <boost/test/utils/iterator/token_iterator.hpp>
28
29#include <boost/test/debug.hpp>
30#include <boost/test/framework.hpp>
31
32#include <boost/test/detail/log_level.hpp>
33#include <boost/test/detail/throw_exception.hpp>
34
35// Boost.Runtime.Param
36#include <boost/test/utils/runtime/parameter.hpp>
37#include <boost/test/utils/runtime/argument.hpp>
38#include <boost/test/utils/runtime/finalize.hpp>
39#include <boost/test/utils/runtime/cla/parser.hpp>
40#include <boost/test/utils/runtime/env/fetch.hpp>
41
42// Boost
43#include <boost/config.hpp>
44#include <boost/test/detail/suppress_warnings.hpp>
45#include <boost/test/detail/enable_warnings.hpp>
46#include <boost/cstdlib.hpp>
47
48// STL
49#include <cstdlib>
50#include <iostream>
51#include <fstream>
52
53#include <boost/test/detail/suppress_warnings.hpp>
54
55//____________________________________________________________________________//
56
57# ifdef BOOST_NO_STDC_NAMESPACE
58namespace std { using ::getenv; using ::strncmp; using ::strcmp; }
59# endif
60
61namespace boost {
62namespace unit_test {
63
64namespace rt = boost::runtime;
65
66// ************************************************************************** //
67// **************                 runtime_config               ************** //
68// ************************************************************************** //
69
70namespace runtime_config {
71
72// UTF parameters
73std::string btrt_auto_start_dbg    = "auto_start_dbg";
74std::string btrt_break_exec_path   = "break_exec_path";
75std::string btrt_build_info        = "build_info";
76std::string btrt_catch_sys_errors  = "catch_system_errors";
77std::string btrt_color_output      = "color_output";
78std::string btrt_detect_fp_except  = "detect_fp_exceptions";
79std::string btrt_detect_mem_leaks  = "detect_memory_leaks";
80std::string btrt_list_content      = "list_content";
81std::string btrt_list_labels       = "list_labels";
82std::string btrt_log_format        = "log_format";
83std::string btrt_log_level         = "log_level";
84std::string btrt_log_sink          = "log_sink";
85std::string btrt_combined_logger   = "logger";
86std::string btrt_output_format     = "output_format";
87std::string btrt_random_seed       = "random";
88std::string btrt_report_format     = "report_format";
89std::string btrt_report_level      = "report_level";
90std::string btrt_report_mem_leaks  = "report_memory_leaks_to";
91std::string btrt_report_sink       = "report_sink";
92std::string btrt_result_code       = "result_code";
93std::string btrt_run_filters       = "run_test";
94std::string btrt_save_test_pattern = "save_pattern";
95std::string btrt_show_progress     = "show_progress";
96std::string btrt_use_alt_stack     = "use_alt_stack";
97std::string btrt_wait_for_debugger = "wait_for_debugger";
98
99std::string btrt_help              = "help";
100std::string btrt_usage             = "usage";
101std::string btrt_version           = "version";
102
103//____________________________________________________________________________//
104
105namespace {
106
107void
108register_parameters( rt::parameters_store& store )
109{
110    rt::option auto_start_dbg( btrt_auto_start_dbg, (
111        rt::description = "Automatically attaches debugger in case of system level failure (signal).",
112        rt::env_var = "BOOST_TEST_AUTO_START_DBG",
113
114        rt::help = "Specifies whether Boost.Test should attempt "
115                   "to attach a debugger when fatal system error occurs. At the moment this feature "
116                   "is only available on a few selected platforms: Win32 and *nix. There is a "
117                   "default debugger configured for these platforms. You can manually configure "
118                   "different debugger. For more details on how to configure the debugger see the "
119                   "Boost.Test debug API, specifically the function boost::debug::set_debugger."
120    ));
121
122    auto_start_dbg.add_cla_id( "--", btrt_auto_start_dbg, "=" );
123    auto_start_dbg.add_cla_id( "-", "d", " " );
124    store.add( auto_start_dbg );
125
126    ///////////////////////////////////////////////
127
128    rt::parameter<std::string> break_exec_path( btrt_break_exec_path, (
129        rt::description = "For the exception safety testing allows to break at specific execution path.",
130        rt::env_var = "BOOST_TEST_BREAK_EXEC_PATH"
131#ifndef BOOST_NO_CXX11_LAMBDAS
132        ,
133        rt::callback = [](rt::cstring) {
134            BOOST_TEST_SETUP_ASSERT( false, "parameter break_exec_path is disabled in this release" );
135        }
136#endif
137    ));
138
139    break_exec_path.add_cla_id( "--", btrt_break_exec_path, "=" );
140    store.add( break_exec_path );
141
142    ///////////////////////////////////////////////
143
144    rt::option build_info( btrt_build_info, (
145        rt::description = "Displays library build information.",
146        rt::env_var = "BOOST_TEST_BUILD_INFO",
147        rt::help = "Displays library build information, including: platform, "
148                   "compiler, STL version and Boost version."
149    ));
150
151    build_info.add_cla_id( "--", btrt_build_info, "=" );
152    build_info.add_cla_id( "-", "i", " " );
153    store.add( build_info );
154
155    ///////////////////////////////////////////////
156
157    rt::option catch_sys_errors( btrt_catch_sys_errors, (
158        rt::description = "Allows to switch between catching and ignoring system errors (signals).",
159        rt::env_var = "BOOST_TEST_CATCH_SYSTEM_ERRORS",
160        rt::default_value =
161#ifdef BOOST_TEST_DEFAULTS_TO_CORE_DUMP
162            false,
163#else
164            true,
165#endif
166        rt::help = "If option " + btrt_catch_sys_errors + " has value 'no' the frameworks does not attempt to catch "
167                   "asynchronous system failure events (signals on *NIX platforms or structured exceptions on Windows). "
168                   " Default value is "
169#ifdef BOOST_TEST_DEFAULTS_TO_CORE_DUMP
170                    "no."
171#else
172                    "true."
173#endif
174    ));
175
176    catch_sys_errors.add_cla_id( "--", btrt_catch_sys_errors, "=", true );
177    catch_sys_errors.add_cla_id( "-", "s", " " );
178    store.add( catch_sys_errors );
179
180    ///////////////////////////////////////////////
181
182    rt::option color_output( btrt_color_output, (
183        rt::description = "Enables color output of the framework log and report messages.",
184        rt::env_var = "BOOST_TEST_COLOR_OUTPUT",
185        rt::default_value = true,
186        rt::help = "Produces color output for logs, reports and help. "
187                   "Defaults to true. "
188    ));
189
190    color_output.add_cla_id( "--", btrt_color_output, "=", true );
191    color_output.add_cla_id( "-", "x", " " );
192    store.add( color_output );
193
194    ///////////////////////////////////////////////
195
196    rt::option detect_fp_except( btrt_detect_fp_except, (
197        rt::description = "Enables/disables floating point exceptions traps.",
198        rt::env_var = "BOOST_TEST_DETECT_FP_EXCEPTIONS",
199        rt::help = "Enables/disables hardware traps for the floating "
200                   "point exceptions (if supported on your platfrom)."
201    ));
202
203    detect_fp_except.add_cla_id( "--", btrt_detect_fp_except, "=", true );
204    store.add( detect_fp_except );
205
206    ///////////////////////////////////////////////
207
208    rt::parameter<unsigned long> detect_mem_leaks( btrt_detect_mem_leaks, (
209        rt::description = "Turns on/off memory leaks detection (optionally breaking on specified alloc order number).",
210        rt::env_var = "BOOST_TEST_DETECT_MEMORY_LEAK",
211        rt::default_value = 1L,
212        rt::optional_value = 1L,
213        rt::value_hint = "<alloc order number>",
214        rt::help = "Enables/disables memory leaks detection. "
215                   "This parameter has optional long integer value. The default value is 1, which "
216                   "enables the memory leak detection. The value 0 disables memory leak detection. "
217                   "Any value N greater than 1 is treated as leak allocation number and tells the "
218                   "framework to setup runtime breakpoint at Nth heap allocation. If value is "
219                   "omitted the default value is assumed."
220    ));
221
222    detect_mem_leaks.add_cla_id( "--", btrt_detect_mem_leaks, "=" );
223    store.add( detect_mem_leaks );
224
225    ///////////////////////////////////////////////
226
227    rt::enum_parameter<unit_test::output_format> list_content( btrt_list_content, (
228        rt::description = "Lists the content of test tree - names of all test suites and test cases.",
229        rt::env_var = "BOOST_TEST_LIST_CONTENT",
230        rt::default_value = OF_INVALID,
231        rt::optional_value = OF_CLF,
232        rt::enum_values<unit_test::output_format>::value =
233#if defined(BOOST_TEST_CLA_NEW_API)
234        {
235            { "HRF", OF_CLF },
236            { "DOT", OF_DOT }
237        },
238#else
239        rt::enum_values_list<unit_test::output_format>()
240            ( "HRF", OF_CLF )
241            ( "DOT", OF_DOT )
242        ,
243#endif
244        rt::help = "Lists the test suites and cases "
245                   "of the test module instead of executing the test cases. The format of the "
246                   "desired output can be passed to the command. Currently the "
247                   "framework supports two formats: human readable format (HRF) and dot graph "
248                   "format (DOT). If value is omitted HRF value is assumed."
249    ));
250    list_content.add_cla_id( "--", btrt_list_content, "=" );
251    store.add( list_content );
252
253    ///////////////////////////////////////////////
254
255    rt::option list_labels( btrt_list_labels, (
256        rt::description = "Lists all available labels.",
257        rt::env_var = "BOOST_TEST_LIST_LABELS",
258        rt::help = "Option " + btrt_list_labels + " instructs the framework to list all the the labels "
259                   "defined in the test module instead of executing the test cases."
260    ));
261
262    list_labels.add_cla_id( "--", btrt_list_labels, "=" );
263    store.add( list_labels );
264
265    ///////////////////////////////////////////////
266
267    rt::enum_parameter<unit_test::output_format> log_format( btrt_log_format, (
268        rt::description = "Specifies log format.",
269        rt::env_var = "BOOST_TEST_LOG_FORMAT",
270        rt::default_value = OF_CLF,
271        rt::enum_values<unit_test::output_format>::value =
272#if defined(BOOST_TEST_CLA_NEW_API)
273        {
274            { "HRF", OF_CLF },
275            { "CLF", OF_CLF },
276            { "XML", OF_XML },
277            { "JUNIT", OF_JUNIT },
278        },
279#else
280        rt::enum_values_list<unit_test::output_format>()
281            ( "HRF", OF_CLF )
282            ( "CLF", OF_CLF )
283            ( "XML", OF_XML )
284            ( "JUNIT", OF_JUNIT )
285        ,
286#endif
287        rt::help = "Set the frameowrk's log format to one "
288                   "of the formats supplied by the framework. The only acceptable values for this "
289                   "parameter are the names of the output formats supplied by the framework. By "
290                   "default the framework uses human readable format (HRF) for testing log. This "
291                   "format is similar to compiler error format. Alternatively you can specify XML "
292                   "or JUNIT as log format, which are easier to process by testing automation tools."
293    ));
294
295    log_format.add_cla_id( "--", btrt_log_format, "=" );
296    log_format.add_cla_id( "-", "f", " " );
297    store.add( log_format );
298
299    ///////////////////////////////////////////////
300
301    rt::enum_parameter<unit_test::log_level> log_level( btrt_log_level, (
302        rt::description = "Specifies the logging level of the test execution.",
303        rt::env_var = "BOOST_TEST_LOG_LEVEL",
304        rt::default_value = log_all_errors,
305        rt::enum_values<unit_test::log_level>::value =
306#if defined(BOOST_TEST_CLA_NEW_API)
307        {
308            { "all"           , log_successful_tests },
309            { "success"       , log_successful_tests },
310            { "test_suite"    , log_test_units },
311            { "unit_scope"    , log_test_units },
312            { "message"       , log_messages },
313            { "warning"       , log_warnings },
314            { "error"         , log_all_errors },
315            { "cpp_exception" , log_cpp_exception_errors },
316            { "system_error"  , log_system_errors },
317            { "fatal_error"   , log_fatal_errors },
318            { "nothing"       , log_nothing }
319        },
320#else
321        rt::enum_values_list<unit_test::log_level>()
322            ( "all"           , log_successful_tests )
323            ( "success"       , log_successful_tests )
324            ( "test_suite"    , log_test_units )
325            ( "unit_scope"    , log_test_units )
326            ( "message"       , log_messages )
327            ( "warning"       , log_warnings )
328            ( "error"         , log_all_errors )
329            ( "cpp_exception" , log_cpp_exception_errors )
330            ( "system_error"  , log_system_errors )
331            ( "fatal_error"   , log_fatal_errors )
332            ( "nothing"       , log_nothing )
333        ,
334#endif
335        rt::help = "Set the framework's log level. "
336                   "The log level defines the verbosity of the testing logs produced by a test "
337                   "module. The verbosity ranges from a complete log, when all assertions "
338                   "(both successful and failing) are reported, all notifications about "
339                   "test units start and finish are included, to an empty log when nothing "
340                   "is reported to a testing log stream."
341    ));
342
343    log_level.add_cla_id( "--", btrt_log_level, "=" );
344    log_level.add_cla_id( "-", "l", " " );
345    store.add( log_level );
346
347    ///////////////////////////////////////////////
348
349    rt::parameter<std::string> log_sink( btrt_log_sink, (
350        rt::description = "Specifies log sink: stdout (default), stderr or file name.",
351        rt::env_var = "BOOST_TEST_LOG_SINK",
352        rt::value_hint = "<stderr|stdout|file name>",
353        rt::help = "Sets the log sink - the location "
354                   "where Boost.Test writes the logs of the test execution. It allows to easily redirect the "
355                   "test logs to file or standard streams. By default testing log is "
356                   "directed to standard output."
357    ));
358
359    log_sink.add_cla_id( "--", btrt_log_sink, "=" );
360    log_sink.add_cla_id( "-", "k", " " );
361    store.add( log_sink );
362
363    ///////////////////////////////////////////////
364
365    rt::enum_parameter<unit_test::output_format> output_format( btrt_output_format, (
366        rt::description = "Specifies output format (both log and report).",
367        rt::env_var = "BOOST_TEST_OUTPUT_FORMAT",
368        rt::enum_values<unit_test::output_format>::value =
369#if defined(BOOST_TEST_CLA_NEW_API)
370        {
371            { "HRF", OF_CLF },
372            { "CLF", OF_CLF },
373            { "XML", OF_XML }
374        },
375#else
376        rt::enum_values_list<unit_test::output_format>()
377            ( "HRF", OF_CLF )
378            ( "CLF", OF_CLF )
379            ( "XML", OF_XML )
380        ,
381#endif
382        rt::help = "Combines an effect of " + btrt_report_format +
383                   " and " + btrt_log_format + " parameters. If this parameter is specified, "
384                   "it overrides the value of other two parameters. This parameter does not "
385                   "have a default value. The only acceptable values are string names of "
386                   "output formats: HRF - human readable format and XML - XML formats for "
387                   "automation tools processing."
388    ));
389
390    output_format.add_cla_id( "--", btrt_output_format, "=" );
391    output_format.add_cla_id( "-", "o", " " );
392    store.add( output_format );
393
394    /////////////////////////////////////////////// combined logger option
395
396    rt::parameter<std::string,rt::REPEATABLE_PARAM> combined_logger( btrt_combined_logger, (
397        rt::description = "Specifies log level and sink for one or several log format",
398        rt::env_var = "BOOST_TEST_LOGGER",
399        rt::value_hint = "log_format,log_level,log_sink[:log_format,log_level,log_sink]",
400        rt::help = "Specify one or more logging definition, which include the logger type, level and sink. "
401                   "The log format, level and sink follow the same format as for the argument '--" + btrt_log_format +
402                   "', '--" + btrt_log_level + "' and '--" + btrt_log_sink + "' respetively. "
403                   "This command can take several logging definition separated by a ':', or be repeated "
404                   "on the command line."
405    ));
406
407    combined_logger.add_cla_id( "--", btrt_combined_logger, "=" );
408    store.add( combined_logger );
409
410    ///////////////////////////////////////////////
411
412    rt::parameter<unsigned> random_seed( btrt_random_seed, (
413        rt::description = "Allows to switch between sequential and random order of test units execution."
414                          " Optionally allows to specify concrete seed for random number generator.",
415        rt::env_var = "BOOST_TEST_RANDOM",
416        rt::default_value = 0U,
417        rt::optional_value = 1U,
418        rt::value_hint = "<seed>",
419        rt::help = "Instructs the framework to execute the "
420                   "test cases in random order. This parameter accepts an optional unsigned "
421                   "integer argument. If parameter is specified without the argument value testing "
422                   "order is randomized based on current time. Alternatively you can specify "
423                   "any positive value greater than 1 and it will be used as random seed for "
424                   "the run. "
425                   "By default, the test cases are executed in an "
426                   "order defined by their declaration and the optional dependencies among the test units."
427    ));
428
429    random_seed.add_cla_id( "--", btrt_random_seed, "=" );
430    store.add( random_seed );
431
432    ///////////////////////////////////////////////
433
434    rt::enum_parameter<unit_test::output_format> report_format( btrt_report_format, (
435        rt::description = "Specifies the test report format.",
436        rt::env_var = "BOOST_TEST_REPORT_FORMAT",
437        rt::default_value = OF_CLF,
438        rt::enum_values<unit_test::output_format>::value =
439#if defined(BOOST_TEST_CLA_NEW_API)
440        {
441            { "HRF", OF_CLF },
442            { "CLF", OF_CLF },
443            { "XML", OF_XML }
444        },
445#else
446        rt::enum_values_list<unit_test::output_format>()
447            ( "HRF", OF_CLF )
448            ( "CLF", OF_CLF )
449            ( "XML", OF_XML )
450        ,
451#endif
452        rt::help = "Set the framework's report format "
453                   "to one of the formats supplied by the framework. The only acceptable values "
454                   "for this parameter are the names of the output formats. By default the framework "
455                   "uses human readable format (HRF) for results reporting. Alternatively you can "
456                   "specify XML as report format. This format is easier to process by testing "
457                   "automation tools."
458    ));
459
460    report_format.add_cla_id( "--", btrt_report_format, "=" );
461    report_format.add_cla_id( "-", "m", " " );
462    store.add( report_format );
463
464    ///////////////////////////////////////////////
465
466    rt::enum_parameter<unit_test::report_level> report_level( btrt_report_level, (
467        rt::description = "Specifies test report level.",
468        rt::env_var = "BOOST_TEST_REPORT_LEVEL",
469        rt::default_value = CONFIRMATION_REPORT,
470        rt::enum_values<unit_test::report_level>::value =
471#if defined(BOOST_TEST_CLA_NEW_API)
472        {
473            { "confirm",  CONFIRMATION_REPORT },
474            { "short",    SHORT_REPORT },
475            { "detailed", DETAILED_REPORT },
476            { "no",       NO_REPORT }
477        },
478#else
479        rt::enum_values_list<unit_test::report_level>()
480            ( "confirm",  CONFIRMATION_REPORT )
481            ( "short",    SHORT_REPORT )
482            ( "detailed", DETAILED_REPORT )
483            ( "no",       NO_REPORT )
484        ,
485#endif
486        rt::help = "Set the verbosity level of the "
487                   "result report generated by the testing framework. Use value 'no' to "
488                   "disable the results report completely."
489    ));
490
491    report_level.add_cla_id( "--", btrt_report_level, "=" );
492    report_level.add_cla_id( "-", "r", " " );
493    store.add( report_level );
494
495    ///////////////////////////////////////////////
496
497    rt::parameter<std::string> report_mem_leaks( btrt_report_mem_leaks, (
498        rt::description = "File where to report memory leaks to.",
499        rt::env_var = "BOOST_TEST_REPORT_MEMORY_LEAKS_TO",
500        rt::default_value = std::string(),
501        rt::value_hint = "<file name>",
502        rt::help = "Parameter " + btrt_report_mem_leaks + " allows to specify a file where to report "
503                   "memory leaks to. The parameter does not have default value. If it is not specified, "
504                   "memory leaks (if any) are reported to the standard error stream."
505    ));
506
507    report_mem_leaks.add_cla_id( "--", btrt_report_mem_leaks, "=" );
508    store.add( report_mem_leaks );
509
510    ///////////////////////////////////////////////
511
512    rt::parameter<std::string> report_sink( btrt_report_sink, (
513        rt::description = "Specifies report sink: stderr(default), stdout or file name.",
514        rt::env_var = "BOOST_TEST_REPORT_SINK",
515        rt::value_hint = "<stderr|stdout|file name>",
516        rt::help = "Sets the result report sink - "
517                   "the location where the framework writes the result report to. "
518                   "The sink may be a a file or a standard "
519                   "stream. The default is 'stderr': the "
520                   "standard error stream."
521    ));
522
523    report_sink.add_cla_id( "--", btrt_report_sink, "=" );
524    report_sink.add_cla_id( "-", "e", " " );
525    store.add( report_sink );
526
527    ///////////////////////////////////////////////
528
529    rt::option result_code( btrt_result_code, (
530        rt::description = "Disables test modules's result code generation.",
531        rt::env_var = "BOOST_TEST_RESULT_CODE",
532        rt::default_value = true,
533        rt::help = "The 'no' argument value for the parameter " + btrt_result_code + " instructs the "
534                   "framework to always return zero result code. This can be used for test programs "
535                   "executed within IDE. By default this parameter has value 'yes'."
536    ));
537
538    result_code.add_cla_id( "--", btrt_result_code, "=", true );
539    result_code.add_cla_id( "-", "c", " " );
540    store.add( result_code );
541
542    ///////////////////////////////////////////////
543
544    rt::parameter<std::string,rt::REPEATABLE_PARAM> tests_to_run( btrt_run_filters, (
545        rt::description = "Filters which tests to execute.",
546        rt::env_var = "BOOST_TEST_RUN_FILTERS",
547        rt::value_hint = "<test unit filter>",
548        rt::help = "Filters which test units to execute. "
549                   "The framework supports both 'selection filters', which allow to select "
550                   "which test units to enable from the set of available test units, and 'disabler "
551                   "filters', which allow to disable some test units. Boost.test also supports "
552                   "enabling/disabling test units at compile time. These settings identify the default "
553                   "set of test units to run. Parameter " + btrt_run_filters + " is used to change this default. "
554                   "This parameter is repeatable, so you can specify more than one filter if necessary."
555    ));
556
557    tests_to_run.add_cla_id( "--", btrt_run_filters, "=" );
558    tests_to_run.add_cla_id( "-", "t", " " );
559    store.add( tests_to_run );
560
561    ///////////////////////////////////////////////
562
563    rt::option save_test_pattern( btrt_save_test_pattern, (
564        rt::description = "Allows to switch between saving or matching test pattern file.",
565        rt::env_var = "BOOST_TEST_SAVE_PATTERN",
566        rt::help = "Parameter " + btrt_save_test_pattern + " facilitates switching mode of operation for "
567                   "testing output streams.\n\nThis parameter serves no particular purpose within the "
568                   "framework itself. It can be used by test modules relying on output_test_stream to "
569                   "implement testing logic. Default mode is 'match' (false)."
570    ));
571
572    save_test_pattern.add_cla_id( "--", btrt_save_test_pattern, "=" );
573    store.add( save_test_pattern );
574
575    ///////////////////////////////////////////////
576
577    rt::option show_progress( btrt_show_progress, (
578        rt::description = "Turns on progress display.",
579        rt::env_var = "BOOST_TEST_SHOW_PROGRESS",
580        rt::help = "Instructs the framework to display the progress of the tests. "
581                   "This feature is turned off by default."
582    ));
583
584    show_progress.add_cla_id( "--", btrt_show_progress, "=" );
585    show_progress.add_cla_id( "-", "p", " " );
586    store.add( show_progress );
587
588    ///////////////////////////////////////////////
589
590    rt::option use_alt_stack( btrt_use_alt_stack, (
591        rt::description = "Turns on/off usage of an alternative stack for signal handling.",
592        rt::env_var = "BOOST_TEST_USE_ALT_STACK",
593        rt::default_value = true,
594        rt::help = "Instructs the framework to use an alternative "
595                   "stack for operating system's signals handling (on platforms where this is supported). "
596                   "The feature is enabled by default, but can be disabled using this command line switch."
597    ));
598
599    use_alt_stack.add_cla_id( "--", btrt_use_alt_stack, "=", true );
600    store.add( use_alt_stack );
601
602    ///////////////////////////////////////////////
603
604    rt::option wait_for_debugger( btrt_wait_for_debugger, (
605        rt::description = "Forces test module to wait for button to be pressed before starting test run.",
606        rt::env_var = "BOOST_TEST_WAIT_FOR_DEBUGGER",
607        rt::help = "Instructs the framework to pause before starting "
608                   "test units execution, so that you can attach a debugger to the test module process. "
609                   "This feature is turned off by default."
610    ));
611
612    wait_for_debugger.add_cla_id( "--", btrt_wait_for_debugger, "=" );
613    wait_for_debugger.add_cla_id( "-", "w", " " );
614    store.add( wait_for_debugger );
615
616    ///////////////////////////////////////////////
617
618    rt::parameter<std::string> help( btrt_help, (
619        rt::description = "Help for framework parameters.",
620        rt::optional_value = std::string(),
621        rt::value_hint = "<parameter name>",
622        rt::help = "Displays help on the framework's parameters. "
623                   "The parameter accepts an optional argument value. If present, an argument value is "
624                   "interpreted as a parameter name (name guessing works as well, so for example "
625                   "'--help=rand' displays help on the parameter 'random'). If the parameter name is unknown "
626                   "or ambiguous error is reported. If argument value is absent, a summary of all "
627                   "framework's parameter is displayed."
628    ));
629    help.add_cla_id( "--", btrt_help, "=" );
630    store.add( help );
631
632    ///////////////////////////////////////////////
633
634    rt::option usage( btrt_usage, (
635        rt::description = "Short message explaining usage of Boost.Test parameters."
636    ));
637    usage.add_cla_id( "-", "?", " " );
638    store.add( usage );
639
640    ///////////////////////////////////////////////
641
642    rt::option version( btrt_version, (
643        rt::description = "Prints Boost.Test version and exits."
644    ));
645    version.add_cla_id( "--", btrt_version, " " );
646    store.add( version );
647}
648
649static rt::arguments_store  s_arguments_store;
650static rt::parameters_store s_parameters_store;
651
652//____________________________________________________________________________//
653
654} // local namespace
655
656void
657init( int& argc, char** argv )
658{
659    shared_ptr<rt::cla::parser> parser;
660
661    BOOST_TEST_I_TRY {
662        // Initialize parameters list
663        if( s_parameters_store.is_empty() )
664            register_parameters( s_parameters_store );
665
666        // Clear up arguments store just in case (of multiple init invocations)
667        s_arguments_store.clear();
668
669        // Parse CLA they take precedence over  environment
670        parser.reset( new rt::cla::parser( s_parameters_store, (rt::end_of_params = "--", rt::negation_prefix = "no_") ) );
671        argc = parser->parse( argc, argv, s_arguments_store );
672
673        // Try to fetch missing arguments from environment
674        rt::env::fetch_absent( s_parameters_store, s_arguments_store );
675
676        // Set arguments to default values if defined and perform all the validations
677        rt::finalize_arguments( s_parameters_store, s_arguments_store );
678
679        // check if colorized output is enabled
680        bool use_color = true;
681        if( s_arguments_store.has(btrt_color_output ) ) {
682            use_color = runtime_config::get<bool>(runtime_config::btrt_color_output);
683        }
684
685        // Report help if requested
686        if( runtime_config::get<bool>( btrt_version ) ) {
687            parser->version( std::cerr );
688            BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_success ) );
689        }
690        else if( runtime_config::get<bool>( btrt_usage ) ) {
691            parser->usage( std::cerr, runtime::cstring(), use_color );
692            BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_success ) );
693        }
694        else if( s_arguments_store.has( btrt_help ) ) {
695            parser->help(std::cerr,
696                         s_parameters_store,
697                         runtime_config::get<std::string>( btrt_help ),
698                         use_color );
699            BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_success ) );
700        }
701
702        // A bit of business logic: output_format takes precedence over log/report formats
703        if( s_arguments_store.has( btrt_output_format ) ) {
704            unit_test::output_format of = s_arguments_store.get<unit_test::output_format>( btrt_output_format );
705            s_arguments_store.set( btrt_report_format, of );
706            s_arguments_store.set( btrt_log_format, of );
707        }
708
709    }
710    BOOST_TEST_I_CATCH( rt::init_error, ex ) {
711        BOOST_TEST_SETUP_ASSERT( false, ex.msg );
712    }
713    BOOST_TEST_I_CATCH( rt::ambiguous_param, ex ) {
714        std::cerr << ex.msg << "\n Did you mean one of these?\n";
715
716        BOOST_TEST_FOREACH( rt::cstring, name, ex.m_amb_candidates )
717            std::cerr << "   " << name << "\n";
718
719        BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_exception_failure ) );
720    }
721    BOOST_TEST_I_CATCH( rt::unrecognized_param, ex ) {
722        std::cerr << ex.msg << "\n";
723
724        if( !ex.m_typo_candidates.empty() ) {
725            std::cerr << " Did you mean one of these?\n";
726
727            BOOST_TEST_FOREACH( rt::cstring, name, ex.m_typo_candidates )
728                std::cerr << "   " << name << "\n";
729        }
730        else if( parser ) {
731            std::cerr << "\n";
732            parser->usage( std::cerr );
733        }
734
735        BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_exception_failure ) );
736    }
737    BOOST_TEST_I_CATCH( rt::input_error, ex ) {
738        std::cerr << ex.msg << "\n\n";
739
740        if( parser )
741            parser->usage( std::cerr, ex.param_name );
742
743        BOOST_TEST_I_THROW( framework::nothing_to_test( boost::exit_exception_failure ) );
744    }
745}
746
747//____________________________________________________________________________//
748
749rt::arguments_store const&
750argument_store()
751{
752    return s_arguments_store;
753}
754
755//____________________________________________________________________________//
756
757bool
758save_pattern()
759{
760    return runtime_config::get<bool>( btrt_save_test_pattern );
761}
762
763//____________________________________________________________________________//
764
765} // namespace runtime_config
766} // namespace unit_test
767} // namespace boost
768
769#include <boost/test/detail/enable_warnings.hpp>
770
771#endif // BOOST_TEST_UNIT_TEST_PARAMETERS_IPP_012205GER
772